Incidental labor costs

In the calculation of personnel costs, it is assumed that sample pretratment is performed by less highly qualified staff. The hourly rate for these workers is 40.00 DM including incidental labor costs. For preparation of GC/MS analysis up to the point of injection, a working time of 10 min/sample gives a cost of 6.66 DM. 

Gas power plants involve a slightly higher labor cost, and a miscellaneous expense much higher. Fixed charges are higher than for steam because the initial investment is higher. Oil engines and waterwheels involve less labor and incidental expense than any of the other forms of power. 

The net cost of operating standard sizes of locomotive cranes consists of the expenses for fuel, labor, incidental expenses and burden, or net cost per ton. 

Fixed charges, consisting of the burden of interest on investment, taxes, insurance, etc., may be taken at 8.5 per cent of the initial cost per year. Labor expense of 5 cts. per inch width of bucket will cover the necessary periodic inspections of equipment as well as the attention required to prevent unwieldy lumps passing to the buckets, etc. On account of the dust which works into the shaft bearings and the chain links and pins, the expense for incidental supplies is high, averaging close to 2 cts. per horsepower consumed. 

Fixed charges are figured at 8.5 per cent of the initial cost of the equipment per year, while the labor expense averages close to 6 cts. per hour of operation for each inch of bucket width for carriers with rigid buckets and 5 cts. for carriers with pivoted buckets. Incidental expenses for lubricants, etc. average close to IJ cts. per horsepower consumed. 

Our book could not have been written without the generous financial support from many sources. We have been helped by a grant from the Workers Compensation Project of the University of Connecticut via the Employment Standards Administration of the U.S. Department of Labor, who bears no responsibility for our policy recommendations. We have also been fortunate to have had sabbaticals from Bentley College and Indiana University, during which we wrote much of our book. Incidental manuscript preparation expenses and expenses for out-of-pocket research costs have also been generously provided by Bentley College and the Office of the Vice-President for Research and the University Graduate School of Indiana University. 

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